The DPA countermeasures on Silicon Labs' Series 2 devices are not reseeded periodically as they should be. This may allow an attacker to eventually extract secret keys through a DPA attack.
The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.
Link | Tags |
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https://community.silabs.com/069Vm00000LJMlfIAH | vendor advisory permissions required |